diff -r fd8fb93e1b6a -r a361355b55c7 src/pyams_skin/resources/js/ext/tinymce/dev/skins/lightgray/Animations.less
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/pyams_skin/resources/js/ext/tinymce/dev/skins/lightgray/Animations.less	Wed Jun 17 10:00:10 2015 +0200
@@ -0,0 +1,10 @@
+// Animations
+
+.@{prefix}-fade {
+	opacity: 0;
+	.transition(opacity .15s linear);
+
+	&.@{prefix}-in {
+		opacity: 1;
+	}
+}